You are using a screwdriver to screw in a screw that has a pitch of 3 cm. The screwdriver has a handle radius of 10 cm.   A: If the efficiency is 35%, how much effort (applied) force is needed to overcome a resistance force of 40 N? B: What is the reason for low efficiency of the screw? Where does the energy go?

Q: A 1,467.124 N painter needs to climb d=3.058 m up a ladder (measured along its length from the point…

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Q: What is the cross product A x B? Find the x component. Find the y component.

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Q: before starting this problem. A uniform plank of length 5.0 m and weight 225 N rests horizontally on…

A: Given:- length(L)=5m Plank hanging (d)=1.1 m Weight (W) = 225 N At distance person weight (w)=mg=375…

Q: A 1.70-m-long pole is balanced vertically on its tip. It starts to fall and its lower end does not…

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Q: What is another name for energy of motion? A) Motional energy B) Potential energy C) Kinetic energy…

A: Given:- What is another name for energy of motion?

Q: What is the ideal mechanical advantage of this pulley system? A. 0.25  B. 2 C. 4  D. 8

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Q: A uniform steel beam of length L and mass m1 is attached via a hinge to the side of a building. The…

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Q: Two identical, thin boards are hinged together at an end as shown below. The length of each board is…

A: Torque is the rotational equivalent of linear force that causes an object to rotate about an axis.…

Q: A young work crew is trying to quickly finish some touch-up painting to complete a job. Rather than…

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Q: tors A and B are shown in the figure. gnitude of their dot product is C, and nitude of their cross…

A: Given that two vectors A and B and also given value of magnitude of cross product and dot product.…

Q: In a third class lever system: Question 33 options:   the applied force and the resistance are…

A: the applied force and the resistance are found on the same side with applied force closer to the…

Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…

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Q: A motor is supplying 60 Nm of torque to its load. If the motor’s shaft is turning at 1,800 rpm, what…

A: Given data:  Torque (τ) = 60 Nm Angular velocity (ω) = 1800 rpm Required: The mechanical power to…

Q: A lever is 5.0 m long. The distance from the fulcrum to the weight to be lifted is 2.0 m. If a…

A: The length of the lever is l = 5.0 m. The distance from the fulcrum to the weight to be lifted is x…

Q: A weight of 6 N is located 11 cm from the fulcrum on the beam of a simple balance. What weight…

A: Weight located on one of the side of the fulcrum (W1)=6 N Distance of weight from the fulcrum…

Q: A uniform steel beam of length L and mass m1 is attached via a hinge to the side of a building. The…

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Q: A force of 16 N acts tangent to the edge of a solid cylinder weighing 18N and which has a diameter…

A: Given:- Force on the solid cylinder =16 N act tangent to the edge  Weight of the cylinder = 18 N…

Q: A lever has an input arm 50 cm long and an output arm 20 cm long. a. What is the mechanical…

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Q: 6. For pulleys, the ideal mechanical advantage is the number of supporting strands. a. What is the…

A: (6)

Q: The two children shown in Figure are balanced on a seesaw of negligible mass. The first child has a…

A: Given: m1 = 26 kg  r1 = 1.6 m m2 = 32 kg

Q: Prob Part A Evaluate the dot product A. Bit A= 7i+3j and B= 4i-3j. A-B= Submit Request Answer Part B…

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Q: A drive with _____ -torque capabilities provides the greatest amount of energy savings. A) variable…

A: A  drive with   variable-  torque   provides the greatest amount of energy savings .

Q: The figure below depicts a camshaft assembly such as one that might be found in an automobile engine…

A: The figure below depicts a camshaft assembly such as one that might be found in an automobile engine…

Q: A bicycle tire has a radius of 10 inches and the axle a radius of .2 inches. What is the mechanical…

A: Radius of the tyre, R = 10 inchesRadius of axle, r = 0.2 inches Let θ be the angle that the wheel is…

Q: The dot product (3i - j)•B is?

A: Assume the co-ordinate axis in such a way that positive x-axis is towards right and positive y-axis…

Q: The figure below depicts a camshaft assembly such as one that might be found in an automobile engine…

A: The solution is given by

Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…

A: Given data:Mass of the board, M = 7 kg.Length of the board, L =  7 mXoffset = 11 cm = 0.11 mMass of…

Q: If JĀKE|=|Ā.§]. then angle between Āandē will be (a) 30° (b) 45° (c) 60° (d) 90°

A: Given condition--- | A × B | = | A • B | . We have to find--- value of b .

Q: (III) A 1.80-m-long pole is balanced vertically with its tipon the ground. It starts to fall and its…

A: The lower end of the pole doesn't slip on the ground so there is no friction. Therefore, the…

Q: Required information The power Pgenerated by a certain windmill design depends upon its diameter D,…

A: Use the following expression for the ratio to find the rotation rate. ΩDVM=ΩDVP Here, ΩM is the rate…

Q: True/False   The stroke of a linear actuator measures the total distance the plunger

A: Linear actuators are the one which create linear motion. They are usually used in machines &…

Q: A 400 N man climbs at the middle of a 150 N ladder leaned against the wall. The top portion of the…

A: Given:- The mass of the man = 400 N  The mass of the ladder m = 150 N  The top portion of the ladder…

Q: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board…

A: Given data The mass of the uniform board is M = 5 kg The length of the uniform board is L = 2.4 m…

Q: A 600-g solid sphere has a diameter of 10 cm rotates at 600 revolutions per minute about an axis…

A: Given: Mass of solid sphere, m = 600 g = 0.6 kg Diameter of sphere, d = 10 cm Radius = 10/2 = 5 cm =…

Q: The pedals of a bicycle are mounted on a bracket whose centre is 27.5 cm above the ground. Each…

A: The height of one of the pedals above the ground varies according to the sinusoidal function.…

Q: Consider the folloning (a) what is the mechanical advantage of a wheeibarrow, such as the one shown…

A: Part A and B are already solved. So  Part A. Mechanical Advantage (MA) = Handle arm length/load arm…

Q: A hanging weight, with a mass of m, = 0.370 kg, is attached by a cord to a block with mass m, =…

A: Initially, vi = 0.820 m/sec -------- of both the blocks.m1 = 0.370 kg, m2 = 0.860 kgm = 0.350 kg ,…

Q: When the beam in situation is balanced , the Angle between the force and the lever arm 0 degrees.…

A: Given Beam is balanced Then angle between force and lever arm  is 0° We have to find this statement…

Q: Using a screwdriver, you try to remove a screw from a piece of furniture, but can't get it to turn.…

A: Given : A man wants to open screwdriver.

Q: : The power provided by a centrifugal pump is given by the formula. Perform a detailed UNIT ANALYSIS…

A: Power is defined as the amount of work done/performed by a body per unit of time. It is represented…

Q: A lady weighing 450 N sits on one end of a seesaw that is 3 m long and is pivoted 1.3 m from the…

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.